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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
innovative and industry-leading offset spacer design
Engineered to clear 37-inch tires while maintaining drivability and comfort
and proper suspension geometry
Crew Cab and Quad Cab Models
Fleece Performance Coolant Bypass Kit With Stainless Steel Line For 98.5-02 5.9L Cummins steering innovative and industry-leading offset spacerThe rear cylinders on the 5. 9 6. 7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. Our coolant bypass kit adds a secondary thermostat, that unlike other brands, works based on
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